Comcast Co. (NASDAQ:CMCSA) has earned an “A-” credit rating from analysts at Morningstar. The investment research firm’s “A-” rating indicates that the company is a low default risk. They also gave their stock a three star rating. Shares of Comcast (NASDAQ:CMCSA) opened at 57.37 on Tuesday. Comcast has a 12-month low of $50.00 and a […]